Cylinder-tooth for threshing-machines.



PATENTED 001?. 6, 1903 J. DAHL. CYLINDER TOOTH FOR THRESHIN-G MACHINES.

APPLIUA'ITIDH FILED AUG. 3, 1902.

H0 MODELu mum. Lmu

H MI W/ TNE SSE S v INIVENTOH' ATTORNEY Tn: mom's PEfiRS cc. wnrournou wnsumarm u c.

UNITED STATES I Patented October c, 19035 PATENT OFFICE.

JACOB DAHL, OF .BOHNSAOK TOWNSHIP, CASS COUNTY, NORTH DAKOTA,

ASSIGNOR OF ONEHALF TO DAVID H. HOUSTON, OF HUNTER TOWN- SHIP, NORTH DAKOTA.

CYLINDER-TOOTH FOR THRESHING MACHINES.

SPECIFICATION forming part of Letters Patent No. 740,540, dated October 6, 1903.

Application filed August a, 1902.

To aZZ whom it may concern.- I Be it known that I, JACOB .DAHL, a citizen of the United States, residing in the township of Bohnsack, in the county of. Cass and State The object of my invention is to provide a novel and practical tooth for use in thresh ing-machine cylinders whereby are provided strong and easily-removable teeth which are made to connect in a novel manner with the bars of the cylinder, whereby the teeth are,

fication similar letters of reference denote' similar parts in all of the illustrations.

Figure 1 presents a side view of my cylin der-tooth. Fig; 2 presents a perspective view of my cylinder-tooth. Fig. 3 presents a view of three teeth set in a section of one of the bars of a cylinder. Fig. 4 presents acrosssectional View of a threshing-cylinder and showing twelve teeth adjusted into vthe twelve bars of the cylinder.

In carrying out my invention my novel teeth for threshing machine cylinders are formed as presented at Fig. 1 and Fig. 2 and set into the bars of the cylinder as presented in Fig. 3 and Fig.4. The tooth A has its shank B turned at an'angle, the tooth being formed with the recess 0, adapted to fit the bars D between the holes in the cylinderbars and the outer sides of the bars. The shank B is squared at its inner end and has toward its outer end a rounded form, which Serial No. 113.601 on) model.)

rounded form of the shank is threaded to carry a bur E.

At F is presented the shaft of the cylinder, at G one of the hubs of the cylinder, at H the spokes of one of the hubsof the cylinder, and at J the rim of one of thespoked sections of the cylinder. The cylinder-bars are set in notches cast in'the rims of the spoked sections of the cylinder, and the cylinder is strongly bound by bands, one of which is shown at L, the said bands being shrunk tightly over the bars of the cylinder.

Ina threshing-machine cylinder for using the novel teeth I change the construction of the cylinder to adapt the cylinder to take the novel teeth, the cylinder-bars being about square in shape and made solid in one piece,- the holes in the bars being bored through the bars parallel to the periphery of the cylinder, whereby I present novel cyliudenbars having holes through the solid bars at a right angle to the holes in the usual cylinder-bars at present in use, and my construction of teeth and bars presents a much stronger comtional View of the cylinder to show a section through one of the holes in three of the bars of the cylinder, and the other nine teeth are shown beyond the cross-section line.

Having fully described my invention, what I claim is-' r 1. The threshing-cylinder tooth substantially as shown provided with a shank turned at an angle to the body of the tooth, and having the recess at the inner side of the angle at the junction of the body and shank, said shank being provided with a thread adapted to take a bur.

2. The combination with a threshing-cylinder having solid peripheral rectangular bars with holes substantially at right angles with radii of the cylinder, of actooth having a body, said tooth having a shank substantially at right angle with the body, said shank adapt- In testimony whereof I alfiX my signature ed to pass under the bars and. through said in presence of two witnesses.

holes, said tooth having a recess at the inner side of the angle at the junction of the body JACOB DAHL' 5 and shank, and said recess adapted to fit the Witnesses:

front part of the cylinder-bars substantially D. MCKENZIE,

as shown. J. H. GALE. 

